What is a Rear Strut Mount?
Well, they’re mounts. For your rear struts. Oh, I’m sorry, were you looking for a little bit more than that?
Okay, fine. Let’s start with the struts. Struts are a part of your car’s suspension, or at least for the cars that have them. They move up and down as your car does, absorbing some of the shock from the road. That keeps the car from dealing with excess stress (which could cause damage), and it keeps you from being subject to excess vibrations. Which is nice. And yes, you take it for granted. Until the system stops working.
Okay, onto the mounts. The rear strut mounts are pretty damn important in this operation, okay?. The mounts are what attach the rear struts to the body of the car. One end of the each rear strut mount bolts directly onto the car’s body, and the other end is attached to the strut. That way the strut stays in place.
The rear strut mounts do more than just attach the struts to the car’s body. They’re also responsible for some of the shock absorption process that the struts are known for.
In between the two ends of the strut mount is a material that provides insulation. As you drive your car over speed bumps, potholes, and other imperfections in the road, the car will bounce up and down. That pulls and pushes on the strut mounts, which allows them to absorb the impact. They also absorb the accompanying noise in the process.
As a result of these insulating strut mounts, your car doesn’t bounce as much as it would, or make as much noise. That keeps many components in the car from being damaged further, and it makes for a much nicer ride. Which you’ll realize as soon as a mount fails.
Rear strut mounts usually have a very long life, and it’s possible that you’ll never need to replace any of yours. But occasionally they do need to be replaced. And any time the rear struts are replaced, the mounts should be, too.